Door device and refrigeration apparatus

Abstract

A door device and a refrigeration apparatus. The door device comprises: a cabinet door (100) rotatably connected to a cabinet (500); an enclosure door (200), the enclosure door (200) being slidably provided on the outer side of the cabinet door (100), and the thickness of the enclosure door being 12-26 mm; and a door sliding mechanism (300), comprising a traction assembly and a door sliding assembly connected to each other, wherein the traction assembly is arranged on the bottom wall of the cabinet, the door sliding assembly is arranged on the cabinet door (100) and is connected to the enclosure door (200), and the traction assembly is configured to drive the door sliding assembly to act in the process of opening or closing the cabinet door (100), so as to drive the enclosure door (200) to move in the width direction of the cabinet door (100). Thus, when the cabinet door (100) rotates relative to the cabinet (500), the door sliding assembly can be driven by the traction assembly to move the enclosure door (200) relative to the cabinet door (100), so that when the refrigeration apparatus is embedded in a kitchen cabinet, interference between the enclosure door (200) and the kitchen cabinet can be avoided while ensuring the coordination and aesthetics and not affecting the user experience.

Description

Door devices and refrigeration equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202323218961.3, filed on November 27, 2023, entitled “A refrigerator hinge”, Chinese patent application No. 202410088590.1, filed on January 22, 2024, entitled “Door assembly and refrigeration equipment”, and Chinese patent application No. 202422088732.2, filed on August 26, 2024, entitled “Door device and refrigeration equipment”, all of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of refrigeration equipment, and in particular to a door device and refrigeration equipment. Background Art

[0004] Currently, refrigerators are essential appliances for almost every household. Most existing refrigerators are cabinet-type. Whether in the kitchen or living room, the placement of the refrigerator requires a certain amount of space. In order to save space, some existing refrigerators are placed in an embedded manner together with cabinets.

[0005] To further enhance coordination and aesthetics, some built-in refrigerators feature decorative panels on the outside of the door, designed to align flush with the cabinetry on the side of the refrigerator. However, in practice, the gap between the refrigerator and the cabinetry is small, and when the door is opened, the decorative panels can interfere with the cabinetry, negatively impacting the user experience. Summary of the Invention

[0006] The present application provides a door device for avoiding the problem of interference between the decorative panel and the cabinet during the process of opening the refrigerator door while ensuring coordination and aesthetics and not affecting the user's experience.

[0007] The present application also provides a refrigeration device.

[0008] The door device according to an embodiment of the present application includes:

[0009] A box door, rotatably connected to the box body, suitable for opening or closing the storage space of the box body;

[0010] A cabinet door is slidably arranged on the outside of the box door, and the thickness of the cabinet door is 12 to 26 mm;

[0011] The sliding door mechanism includes a traction component and a sliding door component that are connected to each other. The traction component is at least arranged on the bottom wall of the box body, and the sliding door component is arranged on the box door and connected to the cabinet door. The traction component is configured to drive the sliding door component to move during the opening or closing process of the box door, thereby driving the cabinet door to move relative to the width direction of the box door.

[0012] The door device of the embodiment of the present application is installed on the cabinet of the refrigeration equipment. During the rotation of the cabinet door relative to the cabinet, the sliding door assembly can move the cabinet door relative to the cabinet door under the drive of the traction assembly. Therefore, when the refrigeration equipment is placed in the cabinet in an embedded manner, the cabinet door can avoid interference with the cabinet during the opening process while ensuring coordination and aesthetics and not affecting the user's experience.

[0013] According to the door device of the embodiment of the present application, the box door is rotatably connected to the box body through a first hinge provided on a lower cross beam of the box body, and the traction assembly is provided close to the first hinge.

[0014] According to the door device of an embodiment of the present application, the first hinge includes a first hinge plate and a first hinge shaft, the first hinge plate includes a support plate and an extension plate, the support plate is installed on the lower cross beam of the box body, the extension plate is connected to the side of the support plate away from the front of the box body, the support plate and the extension plate are arranged at an angle, the first hinge shaft is arranged on the top surface of the extension plate and extends upward, and the corresponding bottom of the box door is hinged to the first hinge shaft; wherein, the traction assembly is arranged close to the first hinge plate.

[0015] According to the door device of an embodiment of the present application, the traction assembly is arranged in an installation area, the installation area is located on the bottom wall of the box body, and the installation area includes a first side, a second side, a third side and a fourth side. The first side and the third side are arranged opposite to each other, and the second side and the fourth side are arranged opposite to each other. The first side is located in the plane where the side of the box body is located, and the second side is located in the plane where the front of the box body is located. In the width direction of the box body, a first distance is left between the third side and the first side; in the thickness direction of the box body, a second distance is left between the fourth side and the second side.

[0016] According to the door device of the embodiment of the present application, the first distance is greater than zero and less than or equal to 100 mm, and the second distance is greater than zero and less than or equal to 60 mm.

[0017] According to the door device of an embodiment of the present application, there are two box doors, which are arranged side by side. Each box door is provided with a corresponding cabinet door and a sliding door mechanism, and at least one of the two traction components is provided on the bottom wall of the box.

[0018] According to the door device of the embodiment of the present application, the traction assembly includes a traction rod, a first rotation shaft fixing seat and a second rotation shaft fixing seat;

[0019] The first rotating shaft fixing seat is connected to the sliding door assembly, the second rotating shaft fixing seat is connected to the bottom wall of the box body, one end of the traction rod is rotatably connected to the first rotating shaft fixing seat, and the other end of the traction rod is rotatably connected to the second rotating shaft fixing seat;

[0020] During the process of opening or closing the cabinet door, the traction rod drives the sliding door assembly to move, thereby driving the cabinet door to move in the width direction relative to the cabinet door.

[0021] According to the door device of an embodiment of the present application, the sliding door assembly includes:

[0022] a base having a first guide rail formed on one side and a second guide rail formed on the other side;

[0023] a first slider slidably disposed on the first guide rail, the traction assembly being connected to the first slider;

[0024] a second slider slidably disposed on the second guide rail and connected to the cabinet door;

[0025] A transmission member, with two ends respectively connected to the first slider and the second slider;

[0026] During the process of opening or closing the door, the traction assembly drives the first slider to move on the first guide rail, and the first slider drives the second slider to move in the opposite direction on the second guide rail through the transmission member.

[0027] According to the door device of the embodiment of the present application, the transmission member includes:

[0028] a first rack, disposed on the first slider;

[0029] a second rack, disposed on the second slider;

[0030] A gear is rotatably disposed on the base and meshes with the first rack and the second rack.

[0031] The refrigeration device provided in the embodiment of the present application includes:

[0032] The box body forms a storage space;

[0033] In the above-mentioned door device, the box door is rotatably connected to the box body and is suitable for opening or closing the storage space of the box body.

[0034] In addition to the technical problems solved by this application, the technical features of the technical solutions constituted, and the advantages brought about by the technical solutions with these technical features described above, other technical features of this application and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] FIG1 is a schematic structural diagram of a refrigeration device provided with a door device according to an embodiment of the present application when sliding.

[0037] FIG2 is a schematic structural diagram of a refrigeration device provided with a door device according to one embodiment of the present application.

[0038] FIG3 is a partial enlarged schematic diagram of FIG2 .

[0039] FIG4 is a schematic structural diagram of a first hinge in a door device according to an embodiment of the present application.

[0040] FIG5 is a schematic structural diagram of a second hinge in a door device according to one embodiment of the present application.

[0041] FIG6 is a schematic structural diagram of a third hinge in a door device according to an embodiment of the present application.

[0042] FIG7 is a schematic structural diagram of a sliding door mechanism in a door device according to one embodiment of the present application.

[0043] FIG8 is a structural schematic diagram of the sliding door mechanism shown in FIG7 from another perspective.

[0044] FIG9 is a schematic structural diagram of a sliding door mechanism in a door device according to another embodiment of the present application.

[0045] FIG10 is a structural schematic diagram of the sliding door mechanism shown in FIG9 from another perspective.

[0046] Reference numerals: 100, door; 110, first door; 120, second door; 200, cabinet door; 300, sliding door mechanism; 310, traction assembly; 311, traction rod; 312, first rotating shaft fixing seat; 313, second rotating shaft fixing seat; 320, sliding door assembly; 321, base; 322, first slider; 323, second slider; 324, connecting member; 3241, first connecting member; 3242, second connecting member; 325, connecting plate; 326, first receiving plate; 327, second receiving plate; 328, transmission member; 3281, first rack; 329, 400, 501, 602, 703, 804, 905, 1001, 1103, 1104, 1205, 1306, 1307, 1408, 1509, 1609, 1708, 1809, 1909, 2010, 2109, 2208, 2209, 2211, 2212, 2213, 2214, 222 82. Second rack; 3283. Gear; 400. Hinge; 410. First hinge; 411. First hinge plate; 4111. Support plate; 4112. Extension plate; 412. First hinge axis; 420. Second hinge; 421. Second hinge plate; 4211. Mounting plate; 4212. Connecting plate; 422. Second hinge axis; 423. Third hinge axis; 430. Third hinge; 431. Third hinge plate; 432. Fourth hinge axis; 500. Box; 501. Bottom wall; 510. First cabinet; 520. Second cabinet; A. Installation area. DETAILED DESCRIPTION

[0047] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0048] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0049] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0050] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0052] As shown in FIG2 , the door device in the embodiment of the present application includes: a box door 100, a cabinet door 200, and a sliding door mechanism 300. The box door 100 is rotatably connected to the box body 500 and is suitable for opening or closing the storage space of the box body 500. The cabinet door 200 is slidably disposed on the outside of the box door 100. The sliding door mechanism 300 includes a traction assembly 310 and a sliding door assembly 320, which are connected to each other. The traction assembly 310 is disposed at least on the bottom wall 501 of the box body 500, and the sliding door assembly 320 is disposed on the box door 100 and connected to the cabinet door 200. The traction assembly 310 is configured to drive the sliding door assembly 320 to operate during the opening or closing process of the box door 100, thereby causing the cabinet door 200 to move in the width direction relative to the box door 100.

[0053] The thickness of the cabinet door 100 is 18-60 mm, and for example, the thickness of the cabinet door 100 is 18 mm, 25 mm, 50 mm, 60 mm, etc. The thickness of the cabinet door 200 is 12-26 mm, and for example, the thickness of the cabinet door 200 is 12 mm, 18 mm, 24 mm, 26 mm, etc. In addition, the cabinet door 200 can be a wooden door or a plastic door.

[0054] It is understood that the door device in this embodiment can be used in refrigeration equipment such as refrigerators, freezers, and ice makers, wherein the refrigeration equipment includes a housing 500, which forms a storage space. The storage space can be used to place items such as vegetables and fruits that need to be refrigerated or frozen. Optionally, the housing 500 of the refrigeration equipment is further provided with a refrigeration device, etc., which can cool the storage space.

[0055] In this embodiment, the door 100 in the door device is rotatably arranged on the body 500 of the refrigeration equipment through the hinge 400. The door 100 can be used to open or close the storage space in the body 500. When the door 100 is in the closed position to close the storage space, the storage space is in a closed state, and the items in the storage space can be refrigerated. When the door 100 is in the open position to open the storage space, the storage space is in an open state, and the user can take out the items in the storage space.

[0056] In order to facilitate the expression of the positional relationship between the various components, in this embodiment, as shown in Figure 2, the box body 500 is roughly constructed as a rectangular structure with a certain height. The box body 500 can be placed on a horizontal plane. The box body 500 has a height direction, a width direction and a thickness direction that are perpendicular to each other, wherein the height direction of the box body 500 is parallel to the vertical direction, and the width direction and the thickness direction are located in the horizontal plane and are perpendicular to each other.

[0057] A storage space is provided inside the box body 500, and an opening is provided on the side of the box body 500 in the thickness direction, which is connected to the storage space. The box door 100 is connected to the side of the box body 500 in the thickness direction where the opening is provided. The box door 100 is extended along the width direction of the box body 500. The box door 100 is connected to a hinge 400 on one side of the width direction of the box body 500. The box door 100 can be rotatably connected to the box body 500 via the hinge 400, thereby ensuring that the box door 100 can open or close the storage space of the box body 500.

[0058] Moreover, the side of the box body 500 on which the box door 100 is installed is the front side, that is, the box door 100 is installed on the front side of the box body 500 .

[0059] The door 100 is generally constructed as a flat plate structure having a certain thickness. The door 100 has a height direction, a width direction, and a thickness direction that are mutually perpendicular. The height direction of the door 100 is parallel to the vertical direction, and the width direction and the length direction are located in a horizontal plane and are mutually perpendicular. One side of the door 100 in the width direction can be rotatably connected to the box body 500 via a hinge 400. For example, as shown in Figure 2, the door 100 is connected to the hinge 400 on the right side of the box body 500 in the width direction, and the door 100 can be rotatably connected to the box body 500 via this hinge 400.

[0060] Moreover, when the door 100 is in a position to close the storage space of the housing 500 , the width direction of the door 100 is parallel to the width direction of the housing 500 , and the thickness direction of the door 100 is parallel to the thickness direction of the housing 500 .

[0061] Furthermore, the cabinet door 200 can be a decorative door panel. The cabinet door 200 is constructed as a flat plate structure with a certain thickness. The cabinet door 200 is connected to the outer side of the cabinet door 100 away from the cabinet body 500. When the refrigeration equipment is placed together with the cabinet in an embedded manner or directly in the cabinet, when the cabinet door 100 is in the closed position, the cabinet door 200 can be flush with the door panel of the cabinet, that is, the outer wall surface of the cabinet door 200 away from the cabinet door 100 can be flush with the outer wall surface of the cabinet.

[0062] In actual usage scenarios, the outer wall surface of the cabinet door 200 can be selected with the same material and shape as the outer wall surface of the cabinet, and can be attached with the same decoration, so that the refrigeration equipment can be sufficiently coordinated with the cabinet and can ensure aesthetics.

[0063] After the door device in this embodiment is installed on the cabinet 500 of the refrigeration equipment, when the cabinet door 100 rotates relative to the cabinet 500 to open or close the storage space of the cabinet 500, the sliding door mechanism 300 can drive the cabinet door 200 to move relative to the cabinet door 100 in the width direction of the cabinet door 100. Therefore, when the refrigeration equipment is placed in an embedded manner in the cabinet, the cabinet door 200 can be prevented from interfering with the cabinet during the process of opening the cabinet door 100 while ensuring coordination and aesthetics and not affecting the user's experience.

[0064] In one embodiment, as shown in FIG1 , the door device and the cabinet 500 are configured to be disposed in an installation space formed between a first cabinet 510 and a second cabinet 520 ; when the cabinet door 100 is opened or closed, the sliding door mechanism 300 is configured to drive the cabinet door 200 to move a preset distance on the cabinet door 100 so that the cabinet door 200 avoids the side walls of the first cabinet 510 and the second cabinet 520 ;

[0065] Alternatively, the door device and the box body 500 are configured to be set in the cabinet; during the opening or closing process of the box door 100, the sliding door mechanism 300 is configured to drive the cabinet door 200 to move a preset distance on the box door 100 so that the cabinet door 200 avoids the side wall of the cabinet.

[0066] It can be understood that the refrigeration device includes a door device and a box body 500.

[0067] In practice, as shown in FIG1 , when a refrigeration appliance having the door device and the cabinet 500 is placed between adjacent first and second cabinets 510, 520, a cabinet door 200 may be provided on the outer side of the cabinet door 100 in the door device, and the cabinet door 200 may be movable relative to the cabinet door 100 along the width direction of the cabinet door 100. Optionally, when the cabinet door 100 is in a state of closing the storage space of the cabinet 500, the outer wall surface of the cabinet door 200 facing away from the cabinet door 100 may be flush with the outer wall surfaces of the first and second cabinets 510, 520, and the outer wall surfaces of the first and second cabinets 510, 520 and the outer wall surface of the cabinet door 200 facing away from the cabinet door 100 are in the same direction in the thickness direction of the cabinet 500.

[0068] At this time, during the rotation of the cabinet door 100 relative to the cabinet body 500 , the sliding door mechanism 300 can drive the cabinet door 200 to move, so that the cabinet door 200 avoids the side walls of the first cabinet body 510 and the second cabinet body 520 .

[0069] Alternatively, after the refrigeration device is placed in the cabinet, a cabinet door 200 can be provided outside the cabinet door 100 of the door assembly, and the cabinet door 200 can be movable relative to the cabinet door 100. Optionally, when the cabinet door 100 is in a state of closing the storage space of the cabinet 500, the outer wall surface of the cabinet door 200 facing away from the cabinet door 100 can be flush with the outer wall surface of the cabinet, and the outer wall surface of the cabinet and the outer wall surface of the cabinet door 200 facing away from the cabinet door 100 are in the same direction in the thickness direction of the cabinet 500.

[0070] At this time, during the rotation of the cabinet door 100 relative to the cabinet body 500 , the sliding door mechanism 300 can drive the cabinet door 200 to move, and can also allow the cabinet door 200 to avoid the side wall of the cabinet body.

[0071] Furthermore, in one embodiment, there are multiple doors 100, each corresponding to at least one storage space; each door 100 is rotatably connected to the box body 500 via multiple hinges 400. The door 100 at the bottom is rotatably connected to the box body 500 via a first hinge 410 disposed on the lower crossbeam of the box body 500, and the traction assembly 310 corresponding to the door 100 at the bottom of the box body 500 is disposed near the first hinge 410.

[0072] It can be understood that according to different refrigeration needs, the cabinet 500 of different refrigeration equipment can be provided with different numbers of storage spaces. These storage spaces are arranged at intervals along the height direction of the cabinet 500. Some storage spaces are used for refrigeration, and some storage spaces are used for freezing. Accordingly, in order to be able to close these storage spaces in a targeted manner, the number of cabinet doors 100 can be multiple, and each cabinet door 100 corresponds to at least one of the storage space positions.

[0073] For example, as shown in FIG2 , a cabinet 500 is provided with two storage spaces spaced apart in the vertical direction. The two storage spaces can be used for refrigeration and freezing, respectively. There are two doors 100, namely a first door 110 and a second door 120. The two doors 100 correspond to the positions of the two storage spaces. In this case, the two storage spaces can be opened or closed independently through the two doors 100.

[0074] For another example, the cabinet 500 may be provided with three storage spaces spaced apart in the vertical direction, namely a first space, a second space, and a third space. The first space and the second space are used for refrigeration, and the second space is used for freezing. The cabinet has two doors 100, namely a first door 110 and a second door 120. The first door 110 corresponds to the positions of the first and second spaces, and the second door 120 corresponds to the position of the third space. In this case, the first door 110 can be used to open or close the first and second spaces simultaneously, while the second door 120 can be used to control the opening and closing of the third space separately.

[0075] It can be understood that in this embodiment, each box door 100 can correspond to a separate storage space. In this case, the box door 100 can independently control the opening and closing status of the storage space. In actual use, according to needs, each box door 100 can also correspond to multiple adjacent storage spaces. In this case, the box door 100 can simultaneously control the opening and closing status of the multiple storage spaces.

[0076] In a specific embodiment, as shown in Figure 2, the door device includes a first box door 110 and a second box door 120, and the first box door 110 and the second box door 120 are spaced apart along the height direction of the box body 500. At this time, the bottom of the second box door 120 can be rotatably connected to the box body 500 by means of a first hinge 410 set on the lower cross beam of the box body 500, and the top of the first box door 110 can be rotatably connected to the box body 500 by means of a third hinge 430 set on the top wall of the box body 500.

[0077] Correspondingly, as shown in Figure 3, the traction assembly 310 located on the bottom wall 501 of the box body 500 is arranged close to the first hinge 410. Under the action of the traction assembly 310, the sliding door assembly 320 can drive the cabinet door 200 corresponding to the second box door 120 to move relative to the width direction of the second box door 120.

[0078] Furthermore, in order to effectively realize the installation of the box door 100, the hinge 400 can also include a second hinge 420, wherein the second hinge 420 is arranged on the front side (middle beam) of the box body 500, and the second hinge 420 is located between the first hinge 410 and the third hinge 430.

[0079] For example, since multiple doors 100 are spaced apart along the height direction of the box body 500, a second hinge 420 can be provided between two adjacent doors 100, and at least one of the two adjacent doors 100 can be rotatably connected to the box body 500 with the aid of the second hinge 420.

[0080] In practical applications, the number of second hinges 420 can be one or two. For example, when there is one second hinge 420, one of two adjacent doors 100 can be connected to the second hinge 420 and rotatably connected to the box body 500 via the second hinge 420. Alternatively, the two adjacent doors 100 can be simultaneously connected to the second hinge 420 and rotatably connected to the box body 500 via the second hinge 420.

[0081] For example, as shown in Figure 2, the box door 100 includes a first box door 110 and a second box door 120. At this time, the second hinge 420 can be set between the first box door 110 and the second box door 120, and the bottom of the first box door 110 and the top of the second box door 120 can be hinged to the second hinge 420 at the same time, so as to be rotatably connected to the box body 500.

[0082] In another embodiment, when the number of the second hinges 420 is two, the two second hinges 420 can be spaced apart along the height direction of the box body 500. At this time, the two adjacent box doors 100 can be hinged to the two second hinges 420 respectively, and then rotatably connected to the box body 500 with the help of their respective second hinges 420.

[0083] Further, in one embodiment, as shown in Figure 4, the first hinge 410 includes a first hinge plate 411 and a first hinge shaft 412, the first hinge plate 411 includes a support plate 4111 and an extension plate 4112, the support plate 4111 is installed on the front side (lower cross beam) of the box body 500, the extension plate 4112 is connected to the side of the support plate 4111 facing away from the front side of the box body 500, the support plate 4111 and the extension plate 4112 are arranged at an angle, the first hinge shaft 412 is arranged on the top surface of the extension plate 4112 and extends upward, and the bottom of the second box door 120 is hinged to the first hinge shaft 412.

[0084] Similarly, the first hinge plate 411 and the first hinge shaft 412 can also be made of metal or non-metallic materials with a certain structural strength. The first hinge plate 411 includes a support plate 4111 and an extension plate 4112 that are connected to each other. The extension plate 4112 is roughly perpendicular to the support plate 4111. The two can be integrally formed by stamping or other methods. The support plate 4111 is provided with multiple mounting holes, and the first hinge shaft 412 is fixed on the extension plate 4112 by welding or threaded connection.

[0085] During actual installation, multiple threaded holes can be set in advance on the front of the box 500 and near the bottom, and then one side of the support plate 4111 in the thickness direction is fitted to the front of the box 500, and then the mounting holes on the support plate 4111 are made to correspond to the positions of the threaded holes, and then the support plate 4111 is fixed to the front of the box 500 with the help of bolts. The extension plate 4112 is connected to the other side of the support plate 4111 in the thickness direction and extends toward the direction of the box door 100, and the first hinge shaft 412 extends upward along the height direction of the box 500.

[0086] Based on this, when installing the box door 100, a hinge hole can be set in advance at the bottom of the box door 100 corresponding to the first hinge 410, and then the first hinge shaft 412 is inserted into the hinge hole, thereby realizing the installation of the box door 100.

[0087] Thus, the traction assembly 310 located on the bottom wall 501 of the box body 500 is disposed close to the first hinge plate 411. Furthermore, as shown in FIG3 , the traction assembly 310 is disposed within an installation area A, which is located on the bottom wall 501 of the box body 500. The installation area A includes a first side, a second side, a third side, and a fourth side. The first side and the third side are disposed opposite each other, and the second side and the fourth side are disposed opposite each other. The first side is located within a plane where the side surface of the box body 500 lies, and the second side is located within a plane where the front surface of the box body 500 lies. In the width direction of the box body 500, a first distance is left between the third side and the first side; and in the thickness direction of the box body 500, a second distance is left between the fourth side and the second side.

[0088] In an optional embodiment, the first distance is greater than zero and less than or equal to 100 mm, and the second distance is greater than zero and less than or equal to 60 mm. For example, the first distance is 20 mm, 50 mm, 60 mm, 80 mm, or 100 mm, and the second distance is 20 mm, 40 mm, 50 mm, or 60 mm.

[0089] Further, in one embodiment, as shown in Figure 5, the second hinge 420 includes a second hinge plate 421, a second hinge shaft 422 and a third hinge shaft 423, the second hinge plate 421 includes a mounting plate 4211 and a connecting plate 4212, the mounting plate 4211 is installed on the front side (middle beam) of the box body 500, the connecting plate 4212 is connected to the side of the mounting plate 4211 away from the front side of the box body 500, the connecting plate 4212 is arranged at an angle to the mounting plate 4211, the connecting plate 4212 has a first side and a second side relative to each other, the second hinge shaft 422 is arranged on the first side, the bottom of the first box door 110 is hinged to the second hinge shaft 422, the third hinge shaft 423 is arranged on the second side, the top of the second box door 120 is hinged to the third hinge shaft 423, and the second hinge 420 can be provided with at least one traction assembly 310. In the case where there are two traction assemblies 310 , one traction assembly 310 corresponds to the first door 110 , and the other traction assembly 310 corresponds to the second door 120 .

[0090] For example, the second hinge plate 421 can be made of a metal or non-metallic material with a certain structural strength. The second hinge plate 421 includes a mounting plate 4211 and a connecting plate 4212 that are connected to each other. The connecting plate 4212 is substantially perpendicular to the mounting plate 4211 and is provided with multiple mounting holes. During actual production, the mounting plate 4211 and the connecting plate 4212 can be integrally formed from the same plate, and then the connecting plate 4212 can be bent relative to the mounting plate 4211 by stamping and folding.

[0091] Two sides of the connecting plate 4212 in the thickness direction are respectively a first side and a second side. The first side is fixedly connected to the second hinge shaft 422 , and the second side is fixedly connected to the third hinge shaft 423 .

[0092] During actual production, the second hinge shaft 422 and the third hinge shaft 423 can be fixedly connected to the connecting plate 4212 by welding. Alternatively, the second hinge shaft 422 and the third hinge shaft 423 can be constructed as a long, rod-shaped integral piece, with the connecting plate 4212 provided with a through hole extending through the thickness thereof, the integral piece inserted into the through hole, and the integral piece fixed in the through hole by welding or threading, with the second hinge shaft 422 and the third hinge shaft 423 formed at both ends of the integral piece in the longitudinal direction on the connecting plate 4212.

[0093] During actual installation, multiple threaded holes can be set in advance on the front of the box body 500 according to the installation position of the box door 100. For example, as shown in Figure 2, multiple threaded holes are set on the front of the box body 500 corresponding to the gap position between the first box door 110 and the second box door 120. Then, the mounting holes on the mounting plate 4211 of the second hinge plate 421 are made to correspond to the positions of the threaded holes, and then the mounting plate 4211 is fixed to the front of the box body 500 with the help of bolts. At this time, the connecting plate 4212 extends toward the direction of the box door 100. At the same time, the second hinge shaft 422 extends upward along the height direction of the box body 500, and the third hinge shaft 423 extends downward along the height direction of the box body 500.

[0094] Based on this, when installing the box door 100, a hinge hole can be set in advance at the bottom of the box door 100 corresponding to the second hinge shaft 422, and a hinge hole can be set in advance at the top of the box door 100 corresponding to the third hinge shaft 423. Afterwards, the second hinge shaft 422 and the third hinge shaft 423 can be respectively inserted into the corresponding hinge holes of the box door 100, thereby realizing the installation of the box door 100.

[0095] Furthermore, in one embodiment, as shown in FIG6 , the third hinge 430 includes a third hinge plate 431 and a fourth hinge shaft 432. A portion of the third hinge plate 431 covers the top wall of the housing 500, and the remaining portion protrudes from the top wall toward the corresponding door 100. The fourth hinge shaft 432 extends downward from the portion of the third hinge plate 431 that protrudes from the top wall. The top of the first door 110 is hinged to the fourth hinge shaft 432. The third hinge 430 may be provided with a traction assembly 310 corresponding to the first door 110.

[0096] Exemplarily, the third hinge plate 431 and the fourth hinge shaft 432 can be made of metal or non-metallic material with a certain structural strength. The third hinge plate 431 includes a first fitting portion and a first protrusion that are connected to each other. The first fitting portion is provided with a plurality of mounting holes. The fourth hinge shaft 432 is fixed on the first protrusion by welding or threaded connection.

[0097] During actual installation, multiple threaded holes can be set on the top wall of the box body 500 in advance, and then the first fitting part of the third hinge plate 431 can be fitted to the top wall of the box body 500, and the mounting hole on the first fitting part can correspond to the position of the threaded hole, and then the first fitting part can be fixed to the top wall of the box body 500 with the help of bolts. At this time, the first fitting part can cover and fit to the top wall of the box body 500, the first protrusion can protrude from the top wall toward the box door 100, and the fourth hinge axis 432 can extend downward along the height direction of the box body 500.

[0098] Based on this, when installing the box door 100, a hinge hole can be set in advance at the top of the box door 100 corresponding to the fourth hinge 400, and then the fourth hinge shaft 432 is inserted into the hinge hole, thereby realizing the installation of the box door 100.

[0099] In another optional embodiment, there are two box doors 100, which are arranged side by side. Each box door 100 is provided with a corresponding cabinet door 200 and a sliding door mechanism 300, and at least one of the two traction components 310 is provided on the top wall of the box body 500.

[0100] It should be noted that each box door 100 can be provided with one or two sliding door mechanisms 300. When it is provided with one sliding door mechanism 300, the corresponding traction component 310 is provided on the bottom wall 501 of the box body 500. When it is provided with two sliding door mechanisms 300, one corresponding traction component 310 is provided on the bottom wall 501 of the box body 500, and the other traction component 310 can be provided on the bottom wall 501, side, lower crossbeam, etc. of the box body 500.

[0101] In one embodiment, to ensure that the traction assembly 310 can drive the sliding door assembly 320 to move, the traction assembly 310 includes a traction rod 311, a first rotation axis fixing base 312, and a second rotation axis fixing base 313. The first rotation axis fixing base 312 is connected to the sliding door assembly 320, and the second rotation axis fixing base 313 is connected to the bottom wall 501 of the cabinet 500. One end of the traction rod 311 is rotatably connected to the first rotation axis fixing base 312, and the other end of the traction rod 311 is rotatably connected to the second rotation axis fixing base 313. When the cabinet door 100 is opened or closed, the traction rod 311 drives the sliding door assembly 320 to move, thereby driving the cabinet door 200 to move in the width direction relative to the cabinet door 100. The second rotation axis fixing base 313 is located within the installation area A.

[0102] For example, the hinge 400 may include a hinge plate and a hinge shaft, with the hinge shaft being fixed to the hinge plate by welding or other means. During actual installation, the hinge plate may be fixed to the housing 500 using bolts or other structures, and the door 100 may be pre-determined with threaded holes. After the hinge plate is fixed to the housing 500, the hinge shaft can be inserted into the hinge hole of the door 100, thereby achieving a rotational connection between the door 100 and the housing 500.

[0103] In the traction assembly 310, the first rotation shaft fixing seat 312 is set on the sliding door assembly 320, and the second rotation shaft fixing seat 313 is set on the bottom wall 501 and close to the hinge plate. The two ends of the traction rod 311 are rotatably connected to the first rotation shaft fixing seat 312 and the second rotation shaft fixing seat 313 respectively.

[0104] In actual use, when the box door 100 rotates relative to the box body 500 between the positions of opening or closing the storage space, the traction assembly 310 can pull the sliding door assembly 320 to move, so that the sliding door assembly 320 drives the cabinet door 200 to move relative to the box door 100 in the width direction of the box door 100.

[0105] Furthermore, in one embodiment, in order to enable the sliding door assembly 320 to effectively drive the cabinet door 200 to move relative to the box door 100 under the drive of the traction assembly 310, as shown in Figures 7 and 8, the sliding door assembly 320 includes: a base 321, a first slider 322, a second slider 323 and a connecting member 324.

[0106] Specifically, a first guide rail is formed on one side of the base 321, and a second guide rail is formed on the other side; the first slider 322 is slidably set on the first guide rail, and the first shaft fixing seat 312 is connected to the first slider 322; the second slider 323 is slidably set on the second guide rail and is connected to the cabinet door 200; the two ends of the connecting member 324 are respectively connected to the first slider 322 and the second slider 323.

[0107] During the process of opening or closing the door 100 , the traction rod 311 drives the first slider 322 to move on the first guide rail, and the first slider 322 drives the second slider 323 to move in the opposite direction on the second guide rail through the connecting member 324 .

[0108] Exemplarily, the base 321 has a first guide rail and a second guide rail arranged side by side and spaced apart. A first slider 322 is disposed on the first guide rail and can slide along the length of the first guide rail. A second slider 323 is disposed on the second guide rail and can slide along the length of the second guide rail. Furthermore, the first slider 322 and the second slider 323 are connected by a connector 324. When the first slider 322 moves on the first guide rail, the connector 324 pulls the second slider 323 to move on the second guide rail, and the second slider 323 moves in the opposite direction of the first slider 322.

[0109] As a specific implementation, as shown in Figures 7 and 8 , the base 321 has a first side and a second side on opposite sides in the thickness direction, respectively. U-shaped grooves are formed on the first side and the second side, respectively. The U-shaped groove on the first side serves as a first guide rail, while the U-shaped groove on the second side serves as a second guide rail. The first and second guide rails extend along the length of the base 321. The first slider 322 is slidably disposed in the first guide rail, while the second slider 323 is slidably disposed in the second guide rail. Furthermore, the first rotating shaft fixing base 312 is connected to the first slider 322, and the cabinet door 200 can be fixedly connected to the second slider 323.

[0110] Taking into account the needs in actual applications, limiting structures can also be set at the ends on both sides of the first guide rail and the second guide rail. Through the restriction of the limiting structure, the first slider 322 and the second slider 323 can move within the set moving range, so as to set the moving distance according to needs to meet the usage requirements of different occasions.

[0111] Accordingly, the traction rod 311 is constructed as a long straight rod, one end of the traction rod 311 is rotatably connected to the first rotation shaft fixing seat 312 via a first rotation shaft, and the other end of the traction rod 311 is rotatably connected to the second rotation shaft fixing seat 313 via a second rotation shaft.

[0112] As an implementation, as shown in FIG8 , the first rotating shaft fixing seat 312 includes a first vertical plate and a first horizontal plate, which are connected to each other to form an L-shaped structure. The first horizontal plate is provided with an axial hole, into which the first rotating shaft is inserted. One end of the traction rod 311 is rotatably connected to the first rotating shaft, thereby being fixedly connected to the first rotating shaft fixing seat 312. The first vertical plate can be fixedly connected to the first slider 322 by welding or other means.

[0113] Similarly, as shown in Figures 7 and 8, the second rotating shaft fixing seat 313 includes a second vertical plate and a second horizontal plate, which are interconnected and form an L-shaped structure. The second horizontal plate is provided with an axial hole, in which a second rotating shaft can be inserted. The other end of the traction rod 311 is rotatably connected to the second rotating shaft, thereby being rotatably connected to the second rotating shaft fixing seat 313.

[0114] To ensure that the first and second sliders 322 and 323 can move synchronously in opposite directions, the connector 324 illustratively includes a first connector 3241 and a second connector 3242. The first and second connectors 3241 and 3242 are configured as flexible ropes. Along the length of the base 321, the first connector 3241 passes around one end of the base 321, with its ends respectively entering the first and second guide rails and connecting to the first and second sliders 322 and 323. Correspondingly, the second connector 3242 passes around the other end of the base 321, with its ends also respectively entering the first and second guide rails and connecting to the first and second sliders 322 and 323. At this point, the two ends of the first connector 3241 are connected to the two ends of the second connector 3242 via the first and second sliders 322 and 323, forming a generally annular structure.

[0115] During actual installation, after the hinge plate is fixedly mounted on the box body 500 , the second rotation axis fixing seat 313 can be fixed on the bottom wall 501 of the box body 500 by means of bolts or other structures.

[0116] Next, the base 321 can be secured to the door 100 using bolts or other structures. For example, two connecting plates 325 are provided on either side of the base 321's length, each with a through-hole. During installation, external bolt holes can be passed through the through-holes in the connecting plates 325 and connected to the door 100, thereby securing the base 321 to the door 100.

[0117] Afterwards, the cabinet door 200 is fixed to the second slider 323 . For example, the cabinet door 200 can be fixedly connected to the second slider 323 by means of bolts or a clamping structure.

[0118] In actual use, as shown in Figures 7 and 8, when the door 100 moves relative to the cabinet 500 from a position closing the storage space to a position opening the storage space, the second rotation axis fixing base 313 is fixed to the bottom wall 501 of the cabinet 500. During the rotation of the door 100, the first slider 322 will move along the first guide rail along the first direction. Correspondingly, the first slider 322 will pull the second slider 323 along the second guide rail along the second direction via the first connecting member 3241. Since the base 321 is fixedly connected to the door 100 and the second slider 323 is fixedly connected to the cabinet door 200, the cabinet door 200 will move relative to the door 100 along the second direction. The first direction is opposite to the second direction, and both the first direction and the second direction are parallel to the width direction of the door 100.

[0119] Correspondingly, when the door 100 moves relative to the box body 500 from the position of opening the storage space to the position of closing the storage space, during the rotation of the door 100, the first slider 322 will move on the first guide rail in a direction opposite to the first direction. Accordingly, the first slider 322 will pull the second slider 323 on the second guide rail in a direction opposite to the second direction through the second connecting member 3242. At this time, the cabinet door 200 will move relative to the door 100 in a direction opposite to the second direction.

[0120] In another embodiment of the present application, as shown in Figures 9 and 10, a sliding door mechanism 300 includes a base 321, a first slider 322, a second slider 323, and a transmission member 328. A first guide rail is formed on one side of the base 321, and a second guide rail is formed on the other side. The first slider 322 is slidably disposed on the first guide rail, and the second slider 323 is slidably disposed on the second guide rail. The transmission member 328 is connected to the first slider 322 and the second slider 323 at both ends. When the first slider 322 moves on the first guide rail, the first slider 322 drives the second slider 323 to move in the opposite direction on the second guide rail via the connecting member 324.

[0121] The base 321 can be secured to the door 100 using bolts or other structures. For example, a first receiving plate 326 and a second receiving plate 327 are provided on either side of the base 321's length, each with a through-hole. During installation, external bolts can be passed through the through-holes in the first and second receiving plates 326 and 327 and connected to the door 100, thereby securing the base 321 to the door 100.

[0122] In some embodiments, the traction assembly includes: a first connecting rod and a second connecting rod. The first end of the first connecting rod is rotatably disposed on the bottom wall 501 of the box body 500.

[0123] The first end of the first connecting rod is rotatably mounted within the mounting area, for example, via a rotating shaft mount. The first end of the second connecting rod is rotatably connected to the second end of the first connecting rod. The second end of the second connecting rod is rotatably mounted on the door 100 and meshes with the teeth on the first slider 322 via a gear disposed on the second end of the second connecting rod.

[0124] It is understandable that the first connecting rod and the second connecting rod are connected by a hinge, and the first connecting rod and the second connecting rod can rotate relative to each other. The first connecting rod can rotate relative to the box body 500, and the second connecting rod can rotate relative to the box door 100.

[0125] When the second end of the second connecting rod makes a circular motion with the cabinet door 100 with the hinge axis as the center, since the first end of the first connecting rod is staggered with the hinge axis, the distance between the second end of the second connecting rod and the first end of the first connecting rod changes, while the position of the second end of the second connecting rod relative to the cabinet door 100 remains unchanged, which causes the second end of the second connecting rod to rotate around the cabinet door 100 and drives the second slider 323 to drive the cabinet door 200 to move along the width direction of the cabinet door 100.

[0126] In actual application, during the opening process of the door 100, the door 100 drives the second end of the second connecting rod to rotate relative to the hinge axis. Based on the staggered arrangement of the first end of the first connecting rod and the hinge axis, the distance between the first end of the first connecting rod and the second end of the second connecting rod increases, driving the second end of the second connecting rod to rotate clockwise relative to the door 100, thereby controlling the second slider 323 to drive the cabinet door 200 to move along the width direction of the door 100 in the direction away from the hinge 400, that is, to move to the left relative to the door 100, so as to avoid interference between the cabinet door 200 and the cabinet door 200 of the side cabinet; During the closing process of the door 100, the second end of the second connecting rod is driven to rotate relative to the hinge axis. Based on the staggered arrangement of the first end of the first connecting rod and the hinge axis, the distance between the first end of the first connecting rod and the second end of the second connecting rod is reduced, driving the second end of the second connecting rod to rotate counterclockwise relative to the door 100, thereby controlling the second slider 323 to drive the cabinet door 200 to move along the width direction of the door 100 toward the direction close to the hinge 400, that is, to move to the right relative to the door 100. This ensures that when the door 100 is closed, the cabinet door 200 can avoid the cabinet door 200 of the cabinet on the side and reset the cabinet door 200.

[0127] In an optional embodiment, the first rotating shaft fixing base 312 is connected to the first slider 322, and the second slider 323 is connected to the cabinet door 200. The first guide rail and the second guide rail serve as a kind of track, and the first slider 322 and the second slider 323 are sliding members adapted to and slidable along the corresponding guide rails. Furthermore, the sliding engagement between the first slider 322 and the first guide rail should at least include a situation where a ball bearing is disposed between the first slider 322 and the first guide rail, and the sliding engagement between the second slider 323 and the second guide rail should at least include a situation where a ball bearing is disposed between the second slider 323 and the second guide rail.

[0128] As shown in Figure 9, the transmission member 328 includes a first rack 3281, a second rack 3282, and a gear 3283. The first rack 3281 is mounted on the first slider 322, and the second rack 3282 is mounted on the second slider 323. The gear 3283 is rotatably mounted on the base 321 and meshes with the first rack 3281 and the second rack 3282.

[0129] In this embodiment, when the first slider 322 slides along the first guide rail, the first rack 3281 slides with the first slider 322, and the first rack 3281 is engaged with the gear 3283. When the first rack 3281 slides, it drives the gear 3283 to rotate, and the second rack 3282 and the first rack 3281 are respectively engaged with the two sides of the gear 3283. When the gear 3283 rotates, it can drive the second rack 3282 to slide in the opposite direction relative to the first rack 3281, thereby driving the second slider 323 to slide in the opposite direction relative to the first slider 322. The structure is simple, convenient and practical.

[0130] As shown in FIG9 , the transmission member 328 further includes a pin shaft, which is disposed on the base 321 , and the gear 3283 is rotatably disposed on the pin shaft.

[0131] In this embodiment, a pin is provided on the base 321 so that a gear 3283 can be provided. The gear 3283 is rotatably provided on the pin and can rotate around the pin so as to transmit power between the first rack 3281 and the second rack 3282, so that the first rack 3281 and the second rack 3282 slide in opposite directions, so that the first slider 322 and the second slider 323 can slide in opposite directions.

[0132] In addition, as described above, a refrigeration device is also provided in this embodiment, which includes a box body 500 and the door body device described in the above embodiment, wherein the box body 500 forms a storage space, and the box door 100 is rotatably connected to the box body 500 through a hinge 400, suitable for opening or closing the storage space of the box body 500.

[0133] Finally, it should be noted that the terms "parallel" and "perpendicular" in the embodiments of this application should not be strictly limited to the geometric sense, and at least manufacturing and installation errors should be considered. For example, errors of plus or minus 10° should be within the scope protected by the embodiments of this application. In addition, the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate from the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A door device for a refrigeration device, the refrigeration device comprising a box (500), comprising: A box door (100) is rotatably connected to the box body (500) and is suitable for opening or closing the storage space of the box body (500); A cabinet door (200), the cabinet door (200) being slidably disposed on the outer side of the box door (100), and the thickness of the cabinet door (200) being 12 to 26 mm; The sliding door mechanism (300) comprises a traction assembly (310) and a sliding door assembly (320) connected to each other, wherein the traction assembly (310) is at least arranged on the bottom wall (501) of the box body (500), and the sliding door assembly (320) is arranged on the box door (100) and connected to the cabinet door (200). The traction assembly (310) is configured to drive the sliding door assembly (320) to move during the process of opening or closing the box door (100), thereby driving the cabinet door (200) to move in the width direction relative to the box door (100).

2. The door device according to claim 1, wherein: The box door (100) is rotatably connected to the box body (500) via a first hinge (410) disposed on a lower cross beam of the box body (500), and the traction assembly (310) is disposed close to the first hinge (410).

3. The door device according to claim 2, wherein: The first hinge (410) includes a first hinge plate (411) and a first hinge shaft (412), the first hinge plate (411) includes a support plate (4111) and an extension plate (4112), the support plate (4111) is installed on the lower cross beam of the box body (500), the extension plate (4112) is connected to the side of the support plate (4111) away from the front of the box body (500), the support plate (4111) and the extension plate (4112) are arranged at an angle, the first hinge shaft (412) is arranged on the top surface of the extension plate (4112) and extends upward, and the bottom of the corresponding box door (100) is hinged to the first hinge shaft (412); wherein the traction assembly (310) is arranged close to the first hinge plate (411).

4. The door device according to any one of claims 1 to 3, wherein: The traction component (310) is arranged in an installation area (A), and the installation area (A) is located on the bottom wall (501) of the box body (500). The installation area (A) includes a first side, a second side, a third side and a fourth side. The first side and the third side are arranged opposite to each other, and the second side and the fourth side are arranged opposite to each other. The first side is located in a plane where the side of the box body (500) is located, and the second side is located in a plane where the front of the box body (500) is located. In the width direction of the box body (500), a first distance is left between the third side and the first side; in the thickness direction of the box body (500), a second distance is left between the fourth side and the second side.

5. The door device according to claim 4, wherein: The first distance is greater than zero and less than or equal to 100 mm, and the second distance is greater than zero and less than or equal to 60 mm.

6. The door device according to claim 1, wherein: There are two box doors (100), the two box doors (100) are arranged side by side, each box door (100) is provided with a corresponding cabinet door (200) and a sliding door mechanism (300), and at least one of the two traction assemblies (310) is arranged on the bottom wall (501) of the box body (500).

7. The door device according to any one of claims 1 to 6, wherein: The traction assembly (310) comprises a traction rod (311), a first rotating shaft fixing seat (312) and a second rotating shaft fixing seat (313); The first rotating shaft fixing seat (312) is connected to the sliding door assembly (320), the second rotating shaft fixing seat (313) is connected to the bottom wall (501) of the box body (500), one end of the traction rod (311) is rotatably connected to the first rotating shaft fixing seat (312), and the other end of the traction rod (311) is rotatably connected to the second rotating shaft fixing seat (313); During the process of opening or closing the cabinet door (100), the traction rod (311) drives the sliding door assembly (320) to move, thereby driving the cabinet door (200) to move in a width direction relative to the cabinet door (100).

8. The door device according to any one of claims 1 to 6, wherein: The sliding door assembly (320) comprises: A base (321) having a first guide rail formed on one side and a second guide rail formed on the other side; A first sliding block (322) is slidably disposed on the first guide rail, and the traction assembly (310) is connected to the first sliding block (322); A second sliding block (323) is slidably disposed on the second guide rail and is connected to the cabinet door (200); A transmission member (328), two ends of which are respectively transmission-connected to the first slider (322) and the second slider (323); During the process of opening or closing the box door (100), the traction assembly (310) drives the first slider (322) to move on the first guide rail, and the first slider (322) drives the second slider (323) to move in the opposite direction on the second guide rail through the transmission member (328).

9. The door device according to claim 8, wherein: The transmission member (328) comprises: A first rack (3281), disposed on the first sliding block (322); A second rack (3282), disposed on the second sliding block (323); The gear (3283) is rotatably disposed on the base (321) and meshes with the first rack (3281) and the second rack (3282).

10. A refrigeration device, wherein: include: A box body (500) is formed with a storage space; According to the door device as described in any one of claims 1 to 9, the box door (100) is rotatably connected to the box body (500) and is suitable for opening or closing the storage space of the box body (500).

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